Thunderbolt SSD as booting drive

Discussion in 'iMac' started by B.Bobo, Aug 27, 2013.

  1. B.Bobo macrumors newbie

    Aug 27, 2013
    I recently bought an external Thunderbolt SSD from LaCie for my Mid-2011 iMac to use it as my boot drive (Mountain Lion).

    Now my problem is that after the Apple starting sound it always takes a lot of time (mostly 1 minute +) until the apple and the spinning wheel appear. After that booting time is just fine.

    I already cleared the PRAM.

    Does anybody know how to get the iMac recognize the SSD with the start volume faster (in the system preferences the SSD is set as the start volume)?

    Many thanks!
  2. simsaladimbamba

    Nov 28, 2010
    Do you have any other HDDs connected to the iMac?
  3. B.Bobo thread starter macrumors newbie

    Aug 27, 2013
    Only the internal HDD which I use as additional storage.
  4. sorcun macrumors newbie

    Mar 10, 2012
    You can set the startup volume from System Preferences in the System Group (the one before last) Startup Disk.

    If you'd like to keep the current configuration select the startup disk at boot time keep (Alt Option) key pressed until you are asked to select the volume from available volumes.
  5. B.Bobo thread starter macrumors newbie

    Aug 27, 2013
    The SSD is already set as the starting volume. When I press Alt after the starting sound it also takes these 1 to 1.5 minutes to get all starting volumes loaded …
  6. macthefork macrumors 6502

    Feb 2, 2013
    You can try resetting the SMC. To do so do this:

    1. Shut down the computer.
    2. Unplug the computer's power cord.
    3. Wait fifteen seconds.
    4. Attach the computer's power cord.
    5. Wait five seconds, then press the power button to turn on the computer.

    That could help. If the SSD is set as the Startup Disk in System Preferences, it should only take seconds, for a complete boot up from pushing the power button.
  7. B.Bobo thread starter macrumors newbie

    Aug 27, 2013
    Thanks for the advice!

    I just found out that my USB mouse is the guilty one … When I start the iMac with the mouse plugged in the delay appears, when I start the iMac with the mouse unplugged it starts immediately.
  8. dextr3k macrumors 6502

    Nov 26, 2012
    So your mouse is fighting with the SSD as a boot device eh? :p

    Glad you figured it all out.
  9. tug macrumors 6502

    Feb 3, 2010
    loughborough. u.k.
    hi mate, just wondering, which programme did you retrieve your data with, super duper or carbon copy cloner? reason im asking is im gonna do the same as you with the lacie rugged. using it as a boot drive.

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